Re: [PATCH 1/2] regulators: Add definition of regulator_set_voltage_time() for !CONFIG_REGULATOR

From: Mark Brown
Date: Tue Jun 03 2014 - 11:49:37 EST


On Tue, Jun 03, 2014 at 08:55:25PM +0530, Viresh Kumar wrote:
> On 3 June 2014 20:23, Mark Brown <broonie@xxxxxxxxxx> wrote:

> > Well, we would need to look at what the drivers were doing and figure
> > out something sensible - it really depends why they're trying to set the
> > regulator and what would happen if it doesn't work.

> For example, few cpufreq drivers are calling it during frequency
> transition and are checking return value as well.. And fail if it failed.

> One way out might be checking if pointer to regulator is valid or not
> and only call it if pointer is not NULL..

No, as I've explained repeatedly NULL is a perfectly valid regulator and
that's not going to work reliably. As I've previously requested please
think about what happens to cpufreq if we fail to ramp voltages.

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